Huawei SUN2000-3KTL-M0 User Manual page 62

SUN2000-(3KTL-12KTL)-M0
User Manual
Alar Alarm Name
m ID
61440 Monitoring Unit
Faulty
2067 Faulty Power
Collector
2072 Transient AC
Overvoltage
Issue 01 (2018-12-30)
Alarm Possible Cause
Severity
1. The flash memory is
Minor
insufficient.
2. The flash memory has bad
sectors.
Major  In grid connection with
zero power mode, the
power meter
communication is
interrupted.

In grid connection with
limited power mode, the
power meter
communication is
interrupted.
Major The inverter detects that the
phase voltage exceeds the
transient AC overvoltage
protection threshold.
Copyright © Huawei Technologies Co., Ltd.
7 Maintenance
Troubleshooting Suggestion
Turn off the AC output switch
and then the DC input switch.
After 5 minutes, turn on the AC
output switch and then the DC
input switch. If the fault persists,
replace the board, If the upgrade
fails several times, contact your
dealer or Huawei technical
support.
1. Check that the power meter
settings are based on the actual
model.
2. Check that the
communications parameters
for the power meter are the
same as the SUN2000 RS485
parameter settings.
3. Check that the power meter is
powered on, and the RS485
cable is connected correctly.
1. Check whether the grid
connection voltage exceeds the
upper threshold. If yes, contact
the local power operator.
2. If you have confirmed that the
grid-tied voltage exceeds the
upper threshold and have
obtained the consent of the
local power operator, modify
the overvoltage protection
threshold through the mobile
phone app, SmartLogger, or
NMS.
3. Check whether the peak power
grid voltage exceeds the upper
threshold.
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